Answer: A) Herodotus Explanation: Herodotus, a Greek author written the first history book in 5th century B.C.

Answer: B) 23 Explanation: If he wants to give these books equally to 2 of his friends, then 1 book will remain, it means possible number of books = 15,17,19,21,23,25,27,29If he wants to give these books equally to 3 of his friends, then 2 books will remain, it means possible number of books = 17,20,23,26,29If he wants to give these books equally to 4 of his friends, then 3 book will remain, it means possible number of books = 15,19,23,27common number is only 23 so it will be answer

Answer: A) West Bangal Explanation: BidhanNagar in Kolkata, West Bangal is popularly known as Salt Lake City.

Answer: B) Potential energy Explanation: An object at rest may have Potential energy.

Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

Answer: A) I am very happy to start this Program Explanation: Here I am very happy to start this Program is correct statement. "Too" is not used with pleasant adjectives. It means 'more than required' and is usually used with unpleasant adjectives. So, 'too healthy', 'too happy', 'too glad' etc are wrong.

Answer: B) 97 Explanation: 9506= 97.50 So 97 and 98 are the two numbers.    so 97 is the answer

Answer: C) 60 kmph Explanation: Speed on return trip = 150% of 50 = 75 km/hr. Average speed = (2 x 50 x 75)/(50 + 75) = 60 km/hr.